APA (7th ed.) Citation

RH, P. (2002). Have GPOs outlived their purpose? A critical perspective. Healthcare Purchasing News, 26(1), 26.

Chicago Style (17th ed.) Citation

RH, Perry. "Have GPOs Outlived Their Purpose? A Critical Perspective." Healthcare Purchasing News 26, no. 1 (2002): 26.

MLA (9th ed.) Citation

RH, Perry. "Have GPOs Outlived Their Purpose? A Critical Perspective." Healthcare Purchasing News, vol. 26, no. 1, 2002, p. 26.